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Johannes Couchet
Flemish harpsichord
after "Joseph Johannes Couchet, 1679"

The widening of compass
and disposition in a harpsichord was called "Ravalement"; many
instruments of the Ruckers-Couchet family were adapted in this way in
order to keep them up-to-date with the changed musical tastes of the
18th century. This practice produced some of the finest instruments that
still survive, in particular those of the Parisian makers F. Blanchet
and P. Taskin.
The Couchet instrument
from which this ravalé copy has been taken has three registers
that pluck only two choirs of strings; both 8' pluck the same string.
The original harpsichord is kept at the Smithsonian Institution in
Washington D.C. The version that I present here has the usual 18th
century disposition, with independent strings for every register.
The outside of the case
can be decorated to imitate red marble with hand-made paper and Latin
mottoes inside, on request. I also build copies of the instrument with
five-octaves compass (FF-f3), or with the original disposition and
compass (C-c3, 49 notes).
Length 220 cm
Width 90 cm
Compass: FF-d3, 58
notes
Two 8' registers, one
4' register, buff stop
Sides of poplar
Soundboard of
quarter-sawn spruce, gilt rose
Keyboards: bone
naturals and chromatics of stained-oak
Wooden jacks and
guides
Flemish turned stand
Music desk
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